/* SPDX-License-Identifier: LGPL-2.1+ */

/*

 * Copyright (C) 2020 Red Hat, Inc.

 */

#include "nm-default.h"

#include "nm-setting-veth.h"

#include <stdlib.h>

#include "nm-utils.h"

#include "nm-setting-connection.h"

#include "nm-setting-private.h"

#include "nm-connection-private.h"

/**

 * SECTION:nm-setting-veth

 * @short_description: Describes connection properties for veth interfaces

 *

 * The #NMSettingVeth object is a #NMSetting subclass that describes properties

 * necessary for connection to veth interfaces.

 **/

/*****************************************************************************/

NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_PEER, );

typedef struct {

    char *peer;

} NMSettingVethPrivate;

/**

 * NMSettingVeth:

 *

 * Veth Settings

 */

struct _NMSettingVeth {

    NMSetting            parent;

    NMSettingVethPrivate _priv;

};

struct _NMSettingVethClass {

    NMSettingClass parent;

};

G_DEFINE_TYPE(NMSettingVeth, nm_setting_veth, NM_TYPE_SETTING)

#define NM_SETTING_VETH_GET_PRIVATE(self) \

    _NM_GET_PRIVATE(self, NMSettingVeth, NM_IS_SETTING_VETH, NMSetting)

/*****************************************************************************/

/**

 * nm_setting_veth_get_peer:

 * @setting: the #NMSettingVeth

 *

 * Returns: the #NMSettingVeth:peer property of the setting

 *

 * Since: 1.30

 **/

const char *

nm_setting_veth_get_peer(NMSettingVeth *setting)

{

    g_return_val_if_fail(NM_IS_SETTING_VETH(setting), NULL);

    return NM_SETTING_VETH_GET_PRIVATE(setting)->peer;

}

/*****************************************************************************/

static gboolean

verify(NMSetting *setting, NMConnection *connection, GError **error)

{

    NMSettingVethPrivate *priv = NM_SETTING_VETH_GET_PRIVATE(setting);

    if (!priv->peer) {

        g_set_error(error,

                    NM_CONNECTION_ERROR,

                    NM_CONNECTION_ERROR_MISSING_PROPERTY,

                    _("property is not specified"));

        g_prefix_error(error, "%s.%s: ", NM_SETTING_VETH_SETTING_NAME, NM_SETTING_VETH_PEER);

        return FALSE;

    }

    if (!nm_utils_ifname_valid(priv->peer, NMU_IFACE_KERNEL, NULL)) {

        g_set_error(error,

                    NM_CONNECTION_ERROR,

                    NM_CONNECTION_ERROR_INVALID_PROPERTY,

                    _("'%s' is not a valid interface name"),

                    priv->peer);

        g_prefix_error(error, "%s.%s: ", NM_SETTING_VETH_SETTING_NAME, NM_SETTING_VETH_PEER);

        return FALSE;

    }

    if (!_nm_connection_verify_required_interface_name(connection, error))

        return FALSE;

    return TRUE;

}

/*****************************************************************************/

static void

get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)

{

    NMSettingVeth *       setting = NM_SETTING_VETH(object);

    NMSettingVethPrivate *priv    = NM_SETTING_VETH_GET_PRIVATE(setting);

    switch (prop_id) {

    case PROP_PEER:

        g_value_set_string(value, priv->peer);

        break;

    }

}

static void

set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)

{

    NMSettingVeth *       setting = NM_SETTING_VETH(object);

    NMSettingVethPrivate *priv    = NM_SETTING_VETH_GET_PRIVATE(setting);

    switch (prop_id) {

    case PROP_PEER:

        g_free(priv->peer);

        priv->peer = g_value_dup_string(value);

        break;

    }

}

/*****************************************************************************/

static void

nm_setting_veth_init(NMSettingVeth *setting)

{}

/**

 * nm_setting_veth_new:

 *

 * Creates a new #NMSettingVeth object with default values.

 *

 * Returns: (transfer full): the new empty #NMSettingVeth object

 *

 * Since: 1.30

 **/

NMSetting *

nm_setting_veth_new(void)

{

    return g_object_new(NM_TYPE_SETTING_VETH, NULL);

}

static void

finalize(GObject *object)

{

    NMSettingVeth *       setting = NM_SETTING_VETH(object);

    NMSettingVethPrivate *priv    = NM_SETTING_VETH_GET_PRIVATE(setting);

    g_free(priv->peer);

    G_OBJECT_CLASS(nm_setting_veth_parent_class)->finalize(object);

}

static void

nm_setting_veth_class_init(NMSettingVethClass *klass)

{

    GObjectClass *  object_class  = G_OBJECT_CLASS(klass);

    NMSettingClass *setting_class = NM_SETTING_CLASS(klass);

    g_type_class_add_private(klass, sizeof(NMSettingVethPrivate));

    object_class->get_property = get_property;

    object_class->set_property = set_property;

    object_class->finalize     = finalize;

    setting_class->verify = verify;

    /**

     * NMSettingVeth:peer:

     *

     * This property specifies the peer interface name of the veth. This

     * property is mandatory.

     *

     * Since: 1.30

     **/

    obj_properties[PROP_PEER] = g_param_spec_string(NM_SETTING_VETH_PEER,

                                                    "",

                                                    "",

                                                    NULL,

                                                    G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE

                                                        | G_PARAM_STATIC_STRINGS);

    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);

    _nm_setting_class_commit(setting_class, NM_META_SETTING_TYPE_VETH);

}